Constraints on coupling constant between dark energy and dark matter

Mubasher Jamil; Muneer Ahmad Rashid

doi:10.1140/epjc/s10052-009-0869-6

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arXiv · 0802.1144

Constraints on coupling constant between dark energy and dark matter

Mubasher Jamil·Muneer Ahmad Rashid

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Abstract

We have investigated constraints on the coupling between dark matter and the interacting Chaplygin gas. Our results indicate that the coupling constant $c$ between these two entities can take arbitrary values, which can be either positive or negative, thus giving arbitrary freedom to the inter-conversion between Chaplygin gas and dark matter. Thus our results indicate that the restriction $0<c<1$ on the coupling constant occurs as a very special case. Our analysis also supports the existence of phantom energy under certain conditions on the coupling constant.

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Mubasher Jamil, Muneer Ahmad Rashid. 2009-02-28. Constraints on coupling constant between dark energy and dark matter. https://doi.org/10.1140/epjc%2Fs10052-009-0869-6

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